Need a little help

[BIG IGG]

Hello everyone,

Well I finally bought a 1/10 4wd BJ4WE, very cool car. I just have a few questions. First do you run a servo save on the steering servo? And if you do what type of saver is it? Second, I will be running a GTB w/6.5 motor. What should the gearing be? It came with a 78 spur. And where do you guys mount the ESC, behind the motor or on the other side of the motor. Sorry if these questions have been asked before. This is my first 1/10 4wd buggy.

Thanks